By decreasing the tax rate, the government can____or encourage consumer spending, business transactions (交易) and investments.
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Our bodies have greater____than most of us realize, and we can benefit by remembering this.
Though it has met with considerable enthusiasm, there has been resistance from some parents to this new ____to teaching and learning.
One important feature of team sports is that they can ____people's team spirit and sense of collective honor.
Human behavior is mostly a product of learning, while animal behavior depends mainly upon ____.